It's not about free time, as I really don't have it. I have a day job and other obligations too. But I've been writing for 10 years so now it comes a bit easier. I also did 3-4 30 days challenges on Steemit alone since I joined.
From the cryptos you listed, I only see Bitshares and Steem as being a worthy, medium/long time investment. Bitcoin / Litecoin, too popular. Dogecoin too close of a community, and Status, Humaniq, sorry but I know nothing about them.. I'll have a look when I get some free time ;)
Zi faina si tie! :)